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Joined: 04 July 2020
Posts: 3
01 August 2020 10:10 am

Hi all
The batteries that come with the qed pl3 are 18650 3.7v li lon 2600mah, can the qed run a different mAh, like 18650 3.7 li lon 5000mah battery?
I thought the higher the mah the longer detector should ran, is this right?

Last edited by Rizsie (01 August 2020 10:27 am)

1 user likes this post: hippyhunter


Joined: 28 July 2020
Posts: 4
01 August 2020 10:33 am

That’s correct, mAh indicates how long the battery will last per charge cycle, roughly linear relationship between mAh and time, just be sure to get protected batteries. Protected batteries have a small circuit inside of them as a safeguard for various issues like overcharging, heat, etc. don’t skimp

3 users like this post: grubstake, hippyhunter, Reg Wilson


Joined: 04 July 2020
Posts: 3
01 August 2020 11:27 am

Thanks for the feedback
I have done some more research and have found that a 18650 battery highest mAh capacity is 3500mah , any thing higher that is a china fake.

1 user likes this post: hippyhunter


Ded Driver
From: West of the Border, WA
Joined: 27 May 2018
Posts: 2,978
01 August 2020 11:49 am

yep you are right on the fake mAh
The good brands are the likes of LG, Sony, Panasonic, Samsung
These manufacturers make different rated batteries for mAh & discharge current capacities

APLA member, GPX4000, modded SD2100, XTerra705, GM1000, Whites MXT Pro, Nokta Pointer, sP01 Enhancer, Garmin GPSMAP 64S, kti PLB, a map, all sorts of coils & a cupla buckets full of hope & enthusiasm

2 users like this post: mbasko, hippyhunter


From: Hill End, NSW
Joined: 01 June 2015
Posts: 132
01 August 2020 09:55 pm

mAh doesn't matter, its just the batteries capacity. as long as they are all 3.7v 18650 you're all good (4.2v when @ full charger)

Like mentioned above, majority of the 18650s going cheap with ratings of 4000+mAh are complete BS..

Samsung have always been my go to 18650.

1 user likes this post: hippyhunter


Joined: 06 November 2017
Posts: 373
01 August 2020 10:08 pm

I run protected panasonic 3500mah in my pl2 and works great. thumbsup
Samsung are also well regarded

Last edited by hippyhunter (01 August 2020 10:10 pm)


Joined: 04 July 2020
Posts: 3
03 August 2020 09:16 am

Thanks for the feedback
I'm going with Panasonic 3400mAh 18650 Li-Ion 3.7V Battery NCR18650B (Button Top)

Battery spec
Capacity (Ah): 3.4 Ah Max (3400 mAh) Min (3250 mAh)
Nominal Voltage (V): 3.6 ~ 3.7 V
Charging Voltage (V): 4.2 V
Charging Current (Ah): 1 Ah (1000 mAh)
Cut-off Voltage (V): 2.5 V
Energy (Wh): 12.2 Wh
Energy Density (Wh/L): 730 Wh/L
Max. Discharge rate (C): C Rating 2C (Recommended Max current 6.8 A)
Pulse current (Ah): (5-6 sec.): 12 Ah
Weight (g): 48 g (+/- 0.5 g)
Diameter (mm): 18.09 mm (+/- 0.5 mm)
Height (mm): 69.9 mm (+/- 0.5 mm)
Protected: Yes
Top (positive side): Button top
Model: NCR18650B Protected
Made in Japan


Reg Wilson
Joined: 06 September 2017
Posts: 700
03 August 2020 12:17 pm

I made the mistake of buying some cheap batteries. Total rubbish. Lesson learned.

Walmer Central Victoria
Began detecting 1979 Best colour 3Kgs Best patch 340 ozs.

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